620736433 has 16 divisors (see below), whose sum is σ = 653083200. Its totient is φ = 589317120.

The previous prime is 620736421. The next prime is 620736461. The reversal of 620736433 is 334637026.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620736433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620736833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667713 + ... + 668641.

It is an arithmetic number, because the mean of its divisors is an integer number (40817700).

Almost surely, 2^620736433 is an apocalyptic number.

It is an amenable number.

620736433 is a deficient number, since it is larger than the sum of its proper divisors (32346767).

620736433 is a wasteful number, since it uses less digits than its factorization.

620736433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 620736433 is about 24914.5827378265. The cubic root of 620736433 is about 853.0393764747.

The spelling of 620736433 in words is "six hundred twenty million, seven hundred thirty-six thousand, four hundred thirty-three".